Add hierarchy to Projects

Would like to have hierarchy or nested projects. This is helpful for organizing large numbers of git repos. For example the EE department creates an EE project to contain all of the git repos that EE department uses. Under the EE project would 3 development programs. Under each program would be the actual projects: fpga firmware, arm software, test code, and so on.

Over the course of several years about 60 unique projects are created for about 15 products. Nesting helps organize the projects instead of having 60 projects in a single list.

The categorizing add-on attempts to address this issue.

This similar to BSERV-2468.